Sectional cast-metal door with interchangeable parts.



' w. LacoNwlLL. SECTIONAL CAST METAL DOOR WITH INTERCHANGEABLE PARTS.

APPLICATION FILED DEC. 4. I9I4.

@mi/Imanes:

Lf/4 54a@ W. L. CONWELL.

, SECTIONAL CAST METAL DOOR WITH-INTERCHANGEABLE PARTS.

APPLICATION FILED DEC. 4.1914.

Patented June 18, 1918. l

' 2 SHEETS-SHEET 2. Eigi F' .la Y29,14. -lily l? 5 vw@ ufo@ 10am/5W @X3i/*memes UNITED STATES PATENT oEEicE.

WALTER L. CONWELL, OF MONTCLAIR, NEW-JERSEY, ASSIGNVOR TO ELLCON COMPANY,

OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

SECTIONAL CAST-METAL DOOR WITH INTERCHANGEABLE PARTS.

Specication of Letters Patent. Patented June 18, 1918.

Application led December 4, 1914. Serial No. 875,484.

To all whom t may concern:

Be it known that I, WALTER L. CONWELL, residing at Montclair, New Jersey, and being a citizen of the United States, have invented certain new and useful Improvements in Sectional Cast-Metal Doors with Interchangeable Parts, of which the fol.

lowing is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and to use the same, reference being had to the accompanying drawings, which illustrate the preferred form of the invention, though it is to be understood that the invention is not limited to the exact details of construction shown and described, as it is obvious that various modifications thereof will occur to persons skilled in the art.

In said drawings:

Figure 1 is mainly a side elevation of the door, but is considerably broken away to show a vertical central sectionthereof.

Fig. 2 is a transverse vertical section taken on line 2 2, of Fig. 1, intermediate portions being broken out.

Fig. 3 is a similar section through a joint in the upper intermediate rail, and is taken on line 3-3 of Fig. 1.

Fig. 4 is a horizontal-section through vone of the stile sections adjacentk one of the removable panels, and is taken'on line 44 of Fig. 1.

Fig. 5 is similar view through a stile section adjacent the lower fixed panel, and is taken on line 5-5 of Fig. 1. A

Figs. 6, 7 and 8 are detail views of one of the upper corner pieces, Fig. 8 being taken on line 8-*8 of Fig. 6.

Figs. 9 and 10 are detail views of one of the upper intermediate connection members.

Figs. 11 and 12 are like views of one of the lower intermediate connectionfmembers.

Figs. 13, 14 and 15 are detail views of one of the lower corner pieces, Fig. 15 being Jraken on line 15-15 of Fig. 13.

Fig. 16 is a side elevation of one of the upper intermediate connecting stile sections; and

Fig. 17 is a similar viewfof one of the lower connecting stile sections.Y

Wooden stock doors are an established commercial commodity of highlyl appreciated value, and it isv a purpose of my present invention to produce a metallic door which may not only be kept in stock in recognized standards, but which may, to meet sudden and unusual demands, be quickly but wellY constructed in desired sizes and forms by the mere assemblage of stock parts.

It is also an object to construct the parts of a light and non-corrosive material, whereby the door possesses inherent qualities, suiting it to be exposed to the elements, and, when of massive dimensions to present an `imposing appearance, or for other purposes, permitting it to be easily moved.

' Another advantage is its knock-down characteristics, allowing'it to be shipped in the most advantageous manner.

The panel design and the number of panels may be optional, it requiring only the selection of correctly dimensioned and formed parts and the arrangement thereof.

Other advantages becoming manifest hereinafter are manifestly a part of this invention and are to be so construed.

In the drawings, which illustrate a door with cast metal parts, 1 represents the upper corner pieces of the door and 2 the lower corner pieces, the former each having top .rail and stile portions, and each lower corner piece being provided with bottom rail and stile portions.

Upper intermediate connection members 3 each have stile and intermediate rail portions, as do. the lower intermediate connectiony members 4.

`Complementary stile sections 5 are employed in connection with removable panels 6 and are present betweenY upper corner pieces land upper intermediate connection members, and also between the latter and lower intermediate connection members 4.

Other complementary stile sections 7 are used in conjunction with permanent panels 8l and are shown as connecting lower inter-l mediate connection members 4 with lower corner pieces 2.

Joining the upper corner pieces 1, is a top rail section 9 suited to the removable panel 6, and between the removable panels 6` is located a double intermediate paneladmitting section 10, uniting upper intermediate connection members 3.

Between the lower removable panel 6 and permanent panel ,8 is a combination paneladmitting and panel-embracing section 11, coupling lower intermediate connection members 4, and appropriatelyailiated with both the removable and permanent panels, 6 and 8, respectively.

Connecting the lower corner-pieces 2 is a bottom rail section 12 formed for association with the stationary panel 8.

Corner-pieces 1 and 2," intermediate connection members 3 and 4, complementary stile sections 5l and 7, top rail section 9, duplex rail section 10, combination rail section 11 and bottom railmsection 12, are all cast metal members, and are preferably hollow, as shown, to insure the door against excessive weight. lVhere, however, unusually heavy doors are desired, as for vault entrances, and the like, these parts may be solid, and their transverse sectional dimensions may be reduced or increased to determine the strength of the door.

Further lightness is given the door by forming it of metal having a lowV speciiic gravity, and ity will possess inherent protective qualities against the elements if said material is also non-corrosive. To acquire these properties, I prefer to use an alinni num alloy, one commercially known as aero metal, being excellently adapted to the purpose. Other alloys or metals may be used, however, in constructing theI door, and, when the latter is to have exceptional strength for protective purposes, cast steel is more suitable.

Stile sections 5 and 7, and rail sections 9, 10, 11 and 12 are illustrated as being hollow prismoids, the opposite ends or each being shaped to form a mortise. Distinguishing details of the various sections will be described hereinafter.

Each of the corner-pieces 1 and 2 and the intermediate connection members 3 and 4 is provided at its opposite ends with tenons 13, adapted to fit within the ymortises of the stile and rail sections associated with it. Said tenons 13 and the mor-tise portions of the stile and rail sections 5, 9, 10, 11 and 12 contain perforations or drilled holes for rivets orscrews which lock the parts together. In some instances, however, the joints may be welded instead of riveted. It is to be noted that said Vjoints also serve to brace the door trame.

Those edge, portions of the corner. pieces, stile and rail sections and the intermediate connection members, which coperate to surround panels, are preferably beveled or given the contour of a classic molding, improving the appearance ofv the door, and the beveling or. molding contour may be on either or both sides of the door.

Upper cornerfpieces 1, top rail section 9, upper stile sections 5, upper intermediate connection members 3 and intermediate duplex rail section 10 Surround the upper removable panel 6, while said upper-V intermediate Connection members 3,. intermediate duplex rail@ .Secties l0, 0tl1e1- intermediate Corner-pieces 1, upper intermediate connection members 3 and the upper portions of lower connection members 4 are provided with pads or bosses 16, and flanges 17, which, taken together, are of the `Same cross section as the combined ridges and ianges 14 and 1,5, and are alind therewith. Be-

tween pads o r bosses 16. of said upper cornerrpieces and intermediate connection members are corev openings 1 8, communicating with the interior of these parts.

A-lined ridgesy 14 and pads orbosses 16, and also their respective alined iianges 15 and 17, form panelfreceiving depressions for' the removable panels 6, and the cushioning strips 19 therefor. After the panels 6 are inserted into their depressions, they are held in place by retainingl strips or frames 20, secured to the ridges 14 and pads or bosses 16 by screws or other suitable means.

The. contiguous sides of stilevand rail sections, intermediate connection members and corner-pieces which surround a permanent panel, in the present instance the lower side of the intermediate combination rail Seotion 11, stile sections 7, bottom rail section 12 and the.y por-tions of lower intermediate connection members. 4 and lower cornerpieces 2, which connect said stile and rail sections, are each provided with spaced par- 211181 anses 2.1, adapted to, lap; and embrace the borders of a permanent panel 8;. Rivets or. othery devices pass through flanges 2l and the inCaSed borders of permanent panel 8 securing said panel in place. Instead of being riveted, the flanges, obviously, may be welded to the panel borders,

It is to be understood that the door show-n in the drawings is but. one embodiment ofmy invention, andv that the various door elements may be arranged to produce vertically disposed intermediate connection members similar to members 3 or 4, will result in a door having mullions. In fact, a Wide range ofy different combinations is possible. Also, the various sections may be perforated or left open in various locations for the insertion of door lixtures, such as locks, door hangers and other accessories.

vWhat I claim is:

1. A sectional door comprising cornerpieces and intermediate connection members having angularly disposed legs forming panel-opening corners, and complementary sections of less length than the distance be tween the panel-opening corners toward Which they extend, said sections being interposed between the ends of opposing legs and having the same outside cross sectional dimensions and outline as those legs, thereby I forming stil'es and rails of uniform cross section longer than the individual stile-andrail-forming parts.

2. A sectional door comprising cornerpieces and intermediate connection members having angular-ly, disposed legs, complenientary sections connecting alined legs and having the same outside cross sectional dimensions as those legs, and integral means on some of the parts secured to other parts in a manner preserving uniformity of cross section in said sections and the legs contiguous thereto.

3. In a sectional door, corner-pieces and intermediate connection members havin angularly disposed legs and being space from each other, and complementary sections, of the same thickness as the divergent legs of said corner-pieces and intermediate connection members, and mortise and tenon joints between the outer ends of said legs and the ends of said complementary sections.

4. In a sectional door, principally tubular corner-pieces and intermediate connection members having diverging legs, and substantially tubular complementary sections interlocked with said legs, said sections and the legs contiguous thereto'having crosssectional perimeters of sufficiently exact correspondence in proportions to cause the tubular portions of said corner-pieces, intermediate connection members and complementary sections to be in end to end abutment and held from telescoping.

In a sectional door, a door frame comprising corner-pieces and intermediate connection members having angular tubular portions forming diverging legs, said legs being reduced beyond the extremities of their tubular portions to form shoulders and tenons, and tubular complementary sections held by' said shoulders from telescoping with the tubular portionsvof said legs and being entered by said tenons.

6. In a sectional door, a door frame comprising corner-pieces and' intermediate` oonnection members and complementary sections connecting the same, the foregoing frame parts having tubular portions Which in adjoining parts have cross sectional perimeters of suliciently exact correspondence in proportions to maintain the tubular portions of adjoining parts in end to endabutment and from telescoping, means locking the parts together, panel receiving portions on same therefor.

7. In a sectional door,a door frame comprising corner-pieces, intermediate connection members and complementary sections connecting and linterlocking Withfsaid corner-pieces and connection members, said frame parts each being a single-piece element having a tubular portion, all adjoining tubular portions having cross sectional per- Vimeters of suiicientlyV exact correspondence in proportions to prevent their telescoping, integral portions of said parts forming differently constructed panel-receiving frames, a removable panel in one of said frames, removable retaining means therefor, anda panel irremovably held in a differently constructed receiving-frame. v

8. In a sectional cast door, a door :frame having stiles and rails and panel openings outlined thereby, said frame comprising corner-pieces and intermediate connection members spaced from each other and complef mentary sections connecting' said cornerpieces and connection members, the inner panel opening-,outliningjsides of said corner-pieces, connection members and connecting sections forming molding contour por# tions and in one or more panel openings a further inwardly disposed panel-receiving frame comprising integralr portions of the opening-outlining parts, and in one or more other panel openings a further inwardly disposed panel-embracing frame comprisingintegral portions of the opening-outlining parts, a removable panel 'or panels in the receivingfframe or frames, removable re- 'taining means therefor, and a permanent panel or panels fxedly secured in' saidembracing frame or frames.

9. In a sectional cast door, corner-pieces and intermediate connection members spaced from each other, complementaryv sections connecting said corner-pieces and`intermediate connection members, said parts interlocking one with another to form stiles and rails greater in length than the individual parts parts and position-retaining means each of which is of uniform cross section pieces and substantially tubular stiles and rails, said stiles and rails having on their panel opening-forming sides molding-contour portions and panel frame-forming portions, and said corner-pieces having on their panel opening-forming sides complementary molding-contour portions and panel frameforming pads or bosses, .there being core holes between the latter communicating with the interior of the corner-pieces, a removable panel received by the frame-forming portions, retaining members therefor, and means securing the latter to said trameforming portions.

11. In a sectional door, a door frame comprising substantially tubular corner-pieces and substantially tubular stiles and rails forming a panel-opening, said stiles and rails having on their panel opening-forming sides molding-contour portions and spaced portions of a panel-embracing frame, the space between said portions communicating with the interior of said members and said corner-pieces having on their panel openingorming sides complementary molding-contour portions and spaced portions of the panel-embracing frame, the space between said latter portions communicating with the interior, a permanent panel embraced by said frame portions, and means fastening said panel thereto. e

12. In a sectional door, a door frame having panel openings and comprising interlocking corner-pieces, stile sections, top, bottom and intermediate rail sections and intermediate connectiony members, all being substantially tubular and having panel-outlining sides with molding-.contour portions thereon, some being provided with frameforming portions of a receiving-frame including corner-pieces having openings communicating with their interiors, and other corner-pieces, stile and rail sections and connection members being provided with spaced frame-forming portions of a binding frame, the space between said latter portions communicating with the interior of the binding frame-forming parts, someV connection members and a rail section being common to both frames, a removablepanel and. a permanent panel positioned, respectively, in said receiving-and binding frames, retaining means for said removable panel, and. securing means for said permanent panel.

13. In a sectional door, a door frame comprising, spaced corner-pieces and intermediate connection members and stile sections, top, bottom and intermediate rail sections connecting and interlocking with said corner-pieces and connection members, all being substantially tubular and having paneloutlining sideswith frame-forming portions gopie; of thspatcntmay 4be obtained ytor arranged to form a plurality of panel-openings and similar panel-receiving frames on -said outlining sides, the frame-forming ortions of said corner-pieces and interme iate connecting members being provided with pads or bosses, there being openingsv interposed therebetween leading to the interiors, said intermediate rail section or sections being common to a pair of receiving frames, removable panels within the frames and retaining means therefor.

lei.. In a sectional door, a door frame comprisingspaced corner-pieces and intermediate connection members and stile sections, top, bottom and intermediate rail sections connecting and interlocking with said corner-pieces and connection members, all being substantiallyv tubular and having panel-outlining sides with binding frame-forming portions on said panel-outlining sides arranged to form a plurality of panel openings and similar panel-binding frames, the frameforminv portions of the parts which outline the panel openings having spaced portions, the space between said latterportions communicating to the interiors of said parts, and permanent panels secured within said bindingl frames, said intermediate rail section or sections being common' to a pair of binding frames.

l5. In a sectional cast door, a door frame comprising spaced corner-pieces and intermediate connection members and stile sections, top, bottom and intermediate rail sections connecting and interlocking with said -corner-pieces and connection members, all

being substantially tubular and having panel-outlining sides, some with portions forming panel-receiving frames and others with portions forming a panel-binding frame lin panel openings, some of the parts being common tov similar frames and other parts to dissimilar frames, the receiving frame-forming portions of some of said corner-pieces and of the connection members having pads or bosses with core openings interposed therebetween, and allthe binding frame-forming portions of other cornerpieces andsaid connection` members comprising spaced parallel flanges, the space therebetween communicating with the inter-iorsv of their respective parts, removable panels and a permanent panel positioned, respectively, 4in said panel-receiving and panel-binding frames, and retaining means for said removable panels.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

WALTER L. CONWELL.

Witnesses: v

B.v CHAMBERLAIN, JOSEPH (l.I DUNN.

ve' cents eachby addressing-.the fommiuionu of Pneu,

Wshingtoxn. ci

ion in Letters Patent No. 1,270,01 3.\

Correct It is hereby certified that in Letters Patent 'No= 1,270,013, granted June 18,

1918, upon the application of Walter L.Conwell, of Montclair, New Jersey, for

an improvement in "Sectional Cast-Metal Doors with InterchangeableParts,

:tu error `appears in the printed specification requiring correction as follows: Page i 4, line 2, claim 10, after the Word rails and-before the comme insert the Words forming a panel-opent'f/Lg; and that the seid Letters Patent should be read With this correction therein that the saine may Conform to the record of the oase in the Patent Oflioe. Y

Signed and sealed this 23d day of July, A. D., 1918.

[SEAL] R. FrWHITEHEAD,

Acting Commissioner of Patents. Cl. 189 53. 

